Crate rc_arena

This crate provides a special allocator of Rc-like objects which reside close together in memory. This is useful when you want to create a large number of Rc objects, but you want them close together in memory or at least know how many you want to create in advance. Only once all of the reference counted smart pointers and the arena are dropped, are the underlying objects dropped.

Example:

use rc_arena::Arena;
 
let arena = Arena::new();
let foo = arena.alloc(1);
let bar = arena.alloc(2);

drop(arena); // objects can outlive the arena if we want
 
let baz = foo.clone();

assert_eq!(*baz, 1);

Structs

Arena

A typed arena that provides reference-counted pointers to its underlying objects.

Rc

A reference counted pointer to an object that lives in an arena.